konkurs

/konkurs/

Cases

SingularPluralWhen to use it
nominativekonkursthe competitionkonkurslathe competitionsthe plain dictionary form — the doer of the sentence
genitivekonkursnuthe competition'skonkurslanıthe competitions'the owner — whose it is
accusativekonkursnuthe competition (as the object)konkurslanıthe competitions (as the object)a specific, known object — whom or what
dativekonkurshato the competitionkonkurslağato the competitionsdirection or recipient — to where, to whom
locativekonkursdaat / in the competitionkonkursladaat / in the competitionswhere it is; also having — mende bar, "I have it"
ablativekonkursdanfrom the competitionkonkursladanfrom the competitionswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
mykonkursummy competitionkonkurslarımmy competitions
yourkonkursungyour competitionkonkurslarıngyour competitions
his / herkonkursuhis / her competitionkonkurslarıhis / her competitions
ourkonkursubuzour competitionkonkurslarıbızour competitions
you all'skonkursuğuzyou all's competitionkonkurslarığızyou all's competitions
theirkonkurslarıtheir competitionkonkurslarıtheir competitions

The overlap in the last rows is real, not a mistake: konkursları can mean "his / her competitions", "their competition", or "their competitions" — context decides.